Subject: 12a Single Rotor RUNS!
From: Rotary Engine
Date: 12/22/2007, 3:35 AM
To: AARotary Engine



     > Hi Paul and All,
     > Finally got a test configuration together, Made 3 short 1-3 min runs.
     > Observations:
     > 1. Engine was smooth at Est.1500 rpm.
     > 2. Coolant flow was robust,Cooling adequate for continued tests.
     > 3. Psru gets hot to touch, Return oil flow out, No endplay or lash?
     > 4. Exhaust cherry red, paint on muffler burnt,
     > 5. Sounds great, Like strong motorcycle per my Wife.
     > Concerns/Questions:
     > 1. Edis-4 timing and tach hook-up?
     > Does one count the missing tooth on Edis 36-1 wheel as #1 of 9
     > for 10 degrees advance? I'm useing 1 coil #1 & #4 to fire the plugs?
     >
     > 2. The oil flow schematic in Mazda maint. manual seems to depict an
     > internal rear housing to front housing path that supplies the oil
     > injection pump.
     > I attached an oil press gauge to a fitting on the pump block of
     > plate, No oil press!
     > Engine E-Shaft lube was determined by the Psru return flow via .050
     > orface
     > on Prop end of the E-shaft.
     > Whats best place to monitor E-Shaft oil press?
     >
     > 3. Can anyone identify the source of Psru gears from the photo?
     > Best Regards & Merry Christmas
     > Rolland (Philippines)
     > Kitfoxes RP-S135/S2804
     >
     >
     > Congratulations Rolland and Merry Christmas.
     >
     > The planet carrier looks like an after market drag
     > racing planet carrier for the Ford C6 automatic transmission.
     > --
     > Paul Lamar ...No rotor no motor.

    Rolland,
    There are a number of us (at different stages) who are interested in the
    single development.
    Questions:-
    Question1.
    Are you running with a flywheel or flexplate. A flywheel tends to
    smooth out
    the severe torque reversals better than a flexplate, however a
    flexplate is
    best for attaching a damper. However could use a lightened flywheel
    as well.

    Question 2.
    What sort of damper are you using?

    Answers:1
    Can't answer the question on the timing wheel, haven't got there yet.

    Answer 2.
    The question on the 'oil injection pump' - the oil goes from the oil
    pump up
    into the front cover (our back end) through a channel ( in al
    housing cover)
    to the metering pump. Most tend to use 2 stroke oil in a separate oil
    reservoir or pre-mix ed with the fuel - rather than the sump oil.
    Sorry I can't give more answers!
    Keep us informed!
    George ( down under)


    The metering pump does not use oil pressure. It is gravity fed.
    There is an atmospheric vent inside the front cover (car)
    on the metering pump shaft.

    Timing at the plug should be around 22 degrees BTDC. If that is what
    you have you are home free.

    As I recall the EDIS defaults to ten degrees BTDC so the missing
    tooth is probably set to TDC and the pickup appears to be about
    30 degrees BTC. About right but check the timing.

    Here is a pdf on the Ford EDIS. Looks like a simple way to
    make a stand alone ignition. I am glad you got it running.

    Paul Lamar ...No rotor no motor.

    Paul & All,
    This 12a does not have a Flywheel or Damper.
    Cranking for vibration test was done with HD drill and crank adapter
    on E-Shaft hub nut. See Jpeg 3504
    I'm useing Edis-4, with the missing tooth @ TDC and the VSR 90 degrees
    before (ccw) to produces 10 BTDC cranking, I used timing light to check,
    I had to retard timing to get it to run, I think to about TDC.
    I need better timing marks.
    Re Flywheel, when I install the 3 blade prop, blades aligned with
    apex seals
    or TDC. Your thoughts?
    Please point me at a source for racing planet Info.
    Thanks to all for the interest & help!
    Best Regards & Merry Christmas
    Rolland (Philippines)
    Kitfoxes PR-S135/S2804

How did you check for TDC? In other words timing should be around
20 degrees BTDC. You should be able to slot the bolt holes in
the trigger plate to adjust it. Make a special hollow spark plug with
a hole in it you can connect a transparent hose to it. Set the engine
with spark plugs up and fill the combustion chamber with engine oil.
Watch the column of oil in the transparent hose as you rock the e-shaft
back and fourth.

I really don't think it makes much difference how the prop blades are clocked.

Ford is now making six pinion planet carriers. Ford Power Stroke Diesel
pickup truck automatic transmission.

Unless you get a flex plate and rubber damper in there you might have trouble
with any gear set you use.

Paul Lamar ...No rotor no motor.

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